How to make an ant farm???

Steps

1. Place a small cardboard tube into a fishbowl or similar container. The purpose for the tube is to encourage the ants to tunnel on the outside of the bowl so you can see them. Otherwise, the ants will be likely to tunnel in the middle, where you cannot see them. Face at least one end of the tube into the side of the bowl. Fill with dirt.
2. Find an ant colony. You can go to the park or your garden and try and find them. Using a plastic spoon, gently dig enough ants and dirt to fill up the bowl 2-3 inches (5 - 7.5 centimeters) from the top. Do not disturb the nest and avoid the entrance way, to avoid collapsing it. Alternatively, you can put sugar water in a jar, leave it near the edge of a nest and the ants will come to you.
3. Capture a queen ant or just to give names search for some. Queens have a much larger thorax and abdomen and usually colored black. They will be located around a lot of eggs. Your ants will die off without her! Catching a queen can be difficult; try checking under logs, stones and in shallower anthills. Spring is the best time to find a queen, when they are on the move establishing new ant colonies. Take care - ants will defend their queen and try to bite you.
4. Get food for your ants. Most ants eat/drink: Tiny bits of fruit and vegetables, dead cockroaches, sugar water, honey, small bread crumbs, bread dipped in sugar water, crackers/bread crumbs with a drop of honey or waffle syrup.
5. Take care of the ants. Sure, ants can go a little while without food. But they will die without water (anywhere from overnight to a couple of days). To water the ant farm, drop a cotton ball soaked in water into the jar. Your ant farm should be watered every day and kept in the shade.
6. Be careful. Don't move the jar too much. The dirt could settle and collapse the tunnels created by the ants
   source  ; http://www.wikihow.com